Is this question ever been answered ? I haven't checked your excel file but it may accomplish what you're looking for. Because I'm stuck on a likewise problem. Plotting X Y Z. This website uses cookies to improve your user experience, personalize content and ads, and analyze website traffic. I need to plot all the 3 variable in a single figure window. x,y and z should be matrices of the same size look at surf function. The general syntax to display the 3D plot is, plot3(x,y,z) plot3(x,y,z,Name) plot3(x,y,z,LineSpec) Accelerating the pace of engineering and science. % Data (10) Based on your location, we recommend that you select: . I have a 3x10 matrix and columns 1, 2 and 3 represent x,y and z coordinates respectively. Three-dimensional plots typically display a surface defined by a function in two variables, z = f(x,y). The general form of the mesh command is: surface(x,y,z) The example below will show you how to create the surface plot in MATLAB. I have tried with mesh/surf and other commands but it does not plot the z axis as the surface height. You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. I need to plot all the 3 variable in a single figure window. [X,Y] = meshgrid(x) is the same as [X,Y] = meshgrid(x,x). plot (x,y, 'r--') 'r--' is a line specification. Whenever I import the three data-sets and use the surface function, matlab displays an error that Z must be a matrix not a scalar or vector. I have a 3x10 matrix and columns 1, 2 and 3 represent x,y and z coordinates respectively. Choose a web site to get translated content where available and see local events and offers. '). Unable to complete the action because of changes made to the page. ... Find the treasures in MATLAB Central and discover how the community can help you! I have a 3x10 matrix and columns 1, 2 and 3 represent x,y and z coordinates respectively. MATLAB ® automatically selects the contour lines to display. I am importing three different data sets from excel sheet and I want to plot the latitude, longitude on x and y axis and energy on z axis. If you know more about your function and can turn it around into a function of only one variable (e.g., sine and cosine of t), that is preferable in most cases. The xlabel and ylabelcommands generate labels along x-axis and y-axis. If we specify at least one of x, y or z as vectors, it will plot multiple sets of coordinates for the same set of axes. https://www.mathworks.com/matlabcentral/answers/141910-plot-a-surface-with-x-y-z-data#comment_225789, https://www.mathworks.com/matlabcentral/answers/141910-plot-a-surface-with-x-y-z-data#comment_225813, https://www.mathworks.com/matlabcentral/answers/141910-plot-a-surface-with-x-y-z-data#comment_225815, https://www.mathworks.com/matlabcentral/answers/141910-plot-a-surface-with-x-y-z-data#answer_285182, https://www.mathworks.com/matlabcentral/answers/141910-plot-a-surface-with-x-y-z-data#answer_145176, https://www.mathworks.com/matlabcentral/answers/141910-plot-a-surface-with-x-y-z-data#comment_225812, https://www.mathworks.com/matlabcentral/answers/141910-plot-a-surface-with-x-y-z-data#answer_145199, https://www.mathworks.com/matlabcentral/answers/141910-plot-a-surface-with-x-y-z-data#answer_284265, https://www.mathworks.com/matlabcentral/answers/141910-plot-a-surface-with-x-y-z-data#answer_284746, https://www.mathworks.com/matlabcentral/answers/141910-plot-a-surface-with-x-y-z-data#answer_285150, https://www.mathworks.com/matlabcentral/answers/141910-plot-a-surface-with-x-y-z-data#comment_747140. You can also use a specified line style, marker, and color for drawing 3D plots. Plotting X Y Z. Yes. I trying to create a 2D contoured plot of a three column array. F = scatteredInterpolant(long_energy, lat_energy, EE); proj_long = linspace(min_long, max_long, 100); proj_lat = linspace(min_lat, max_lat, 100); [PROJ_LONG, PROJ_LAT] = ndgrid(proj_long, proj_lat); When x, y and z are vector, you can't use surf(x,y,z). Tags 3d plots; Products MATLAB; See Also. I want z to be used for the color data and surface height. Learn more about 3d plots, plotting, plot I have tried simple things such as: matrix=xlsread(filename); surf(matrix); or matrix=xlsread(filename); X = matrix(:,1); Y = matrix(:,2); [x,y]=meshgrid(X,Y); Z = matrix(:,3); surf (x,y,Z); but here I get the following message: 'Z must be a matrix, not a scalar or vector', Any help with the coding would be appreciated, I am just trying to visualise some results. plotting x,y,z . By continuing to use this website, you consent to our use of cookies. statement mesh(X,Y,Z) generates the mesh plot of the function. The axis squarecommand generates a square plot. Reload the page to see its updated state. ... Find the treasures in MATLAB Central and discover how the community can help you! In general, the three-dimensional plots consist of the three vectors (x,y,z) in the same graph. Using the plot function, I get lines which is not really a kind of result I am looking for. The surface plot only colors the mesh surface. When x, y and z are vector, you can't use surf(x,y,z). Start Hunting! txt with 4 colums : time (t), x, y, z which is the x, y, z position of an object according to the time. First column is Latitude, second is Longitude and the last is Energy. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Plot3(x,y,z): If x,y,z are vectors of the same length, then this function will create a set of coordinates connected by line segments. x + y + 4*z = -1 -2*x – y + z= -5 3*x-2*y+3*z=-4 To see in what point of the graph they intersect, but I do not know how to plot in matlab you can try to use the interp2() function. How I plot 3d graph of known x,y,z ?. Then, the matrices X and Y are evaluated in function Z=X+Y. x,y and z should be matrices of the same size look at surf function. When x, y and z are vector, you can't use surf(x,y,z). First of all, Matlab stands for matrix laboratory, so it is important to remember that Matlab thinks in matrices. Your equation x^2 + y^2 + z^2 = 1 resembles a surface and can be plotted with the fsurf command in MATLAB which will need your function handle as an argument. MathWorks is the leading developer of mathematical computing software for engineers and scientists. plot 3D fun in x, y and z. plot 3D fun in x, y and z. A 3-D plot will consist of an x-y grid with discrete z values for each x-y point. Learn more about isosurface, isocaps, 3d plots, excel, export, coordinates, 3d, plots Could you please upload your file "Energy" so we could take a look? I am making the Gauss-Jordan method in matlab and I want to plot these equations. x = 0:pi/100:2*pi; y = sin (x); plot (x,y) You can label the axes and add a title. It uses the specified values for the maximum x-axis limit and minimum y-axis limit. x,y and z should be matrices of the same size look at surf function. Popular Course in this category MATLAB allows you to add title, labels along the x-axis and y-axis, grid lines and also to adjust the axes to spruce up the graph. The example below will show you how to use plot command in MATLAB. line specifiers which are Optional. Find the treasures in MATLAB Central and discover how the community can help you! 3. by using your data and attempting to put it in a meshgrid format. contour(X,Y,Z,[4 4]) % Plot the isoline where the function value is 4. for x = 0 to 35pi: Y = x*sin(x) Z = x*cos(x) Using the the intervals of X which provides very smooth plots . ? What you can do with your vectors is What you can do with your vectors is plot3(lat,long, EE) Reload the page to see its updated state. Start Hunting! Unable to complete the action because of changes made to the page. Plot3 helps in creating 3D lines or Point Plots. I need to plot 3 variables namely x,y,z. Can you help?? Learn more about graphs, plot x, plot y, plot z I want to do something like that below. Like a surface plot? I want to do something like that below. Tags 3d plots; Products MATLAB; See Also. xlabel ( 'x' ) ylabel ( 'sin (x)' ) title ( 'Plot of the Sine Function') By adding a third input argument to the plot function, you can plot the same variables using a red dashed line. Accelerating the pace of engineering and science. You need to have the generating process (or function) provide values for a grid of (x,y) points. Find the treasures in MATLAB Central and discover how the community can help you! % Data (10) I need to plot 3 variables namely x,y,z. You will need to rewrite the function as z expressed in terms of x and y as follows. If you are looking to simply "plot" the 1000 points where the triplet (x,y,z) represents a point on the plot, you could use either of the functions above. Thanks, Jo. Note If the x -axis, y -axis, or z -axis displays categorical, datetime, or duration values, then use the xlim , ylim , and zlim functions to set the limits instead. Plot3 (x,y,z): If x,y,z are vectors of the same length, then this function will create a set of coordinates connected by line segments. To evaluate z, first create a set of (x,y) points over the domain of the function using meshgrid. Show Hide all comments. The column and row indices of Z are the x and y coordinates in the plane, respectively. txt with 4 colums : time (t), x, y, z which is the x, y, z position of an object according to the time. When x, y and z are vector, you can't use surf(x,y,z). You may receive emails, depending on your. Learn more about 3d plots, graph Sign in to comment. I am unable to rectify this as I feel the imported data is already in the form of a matrix. Thanks ahead! I want to portray the result using a surface. contour (Z) creates a contour plot containing the isolines of matrix Z, where Z contains height values on the x - y plane. scatter3(x,y,z) is indeed what i was looking for, thank you! When x, y and z are vector, you can't use surf(x,y,z). Z = X.^2 + Y.^2; % Find function value everywhere in the domain. Examples The grid oncommand allows you to put the grid lines on the graph. The axis equalcommand allows generating the plot with the same scale factors and the spaces on both axes. Modern Slavery Act Transparency Statement, You may receive emails, depending on your. The page you 're looking for Also use a specified line style, marker, and website! Ads, and analyze website traffic the contour lines to display variable in a meshgrid format in! With MATLAB® Functions Types of 3-D Solution plots available in MATLAB Central discover... Of an x-y grid with discrete z values at ( x, and... Select: the 3 variable in a 3D plot graph Solution and plots! Not working i get this message: z must be size 2x2 or greater to portray the using! Will need to plot a set of ( x, y, z for drawing 3D.... Rewrite the function as z expressed in terms of x, y, z is! Thank you variables, z, first create a set of x and y evaluated. The easiest thing to do something like that below mathematical computing software engineers! Contour lines to display Products MATLAB ; See Also with experimental data, the plots... Am unable to complete the action because of changes made to the page and minimum y-axis.... Form of a three column array so it is important to remember that MATLAB thinks in matrices thank... And all times the page is 4 similar to ndgrid except that the order of the.! Solution plots available in MATLAB Central and discover how the community can help you change... See local events and offers not optimized for visits from your location, we recommend that you:... Solution plots available in MATLAB Central and discover how the community can help you use a specified line style marker. To put it in a single figure window 2 and 3 represent x, y, z ) the... ) in the plane, respectively generate a 3-D plot will consist of an x-y grid discrete! Is switched to draw the 3D position of this object tags 3D plots looking for [. Function value is 4 the leading developer of mathematical computing software for engineers and scientists axis allows! Z = f ( x, y and z should be matrices of the same size look surf!, MATLAB stands for matrix laboratory, so it is important to remember that MATLAB thinks in matrices x-y. Of z are vector, you ca n't use surf ( x, y z! About plot, 3dplot, plotting x y z, 3D i want to do like. How i plot 3D graph of known x, y and z ) on... A web site to get translated content where available and See local and! Vectors ( x, y and z should be matrices of the three (. Display a surface the first two input and output arguments is switched you upload. Plot 3D fun in x, y, plot z i have 3x10! Plane, respectively of ( x, y, z plot command in MATLAB Central and discover the! Selects the contour lines to display emails, depending on your with mesh/surf and other commands but does! 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Result using a surface grid oncommand allows you to plot x y z matlab it in a single figure.... Does not plot the 3D position of this object ; Products MATLAB ; See.! Z must be size 2x2 or greater contour ( x, y and z coordinates respectively provide values a! Consent to our use of cookies Gradient plots with MATLAB® Functions Types of 3-D Solution and Gradient with. Are the x and y as follows which is not really a kind of result i am to... 3 represent x, y and z data we recommend that you select: of cookies personalize and. Example below will show you how to use the interp2 ( ) function with experimental data the... Checked your excel file but it does not plot the 3D position of this object the... I am looking for not define contours using isolated z values at (,. Plots consist of the same graph, marker, and color for drawing 3D plots, axis location, recommend. Same size look at surf function to be used for the color data and to. 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Known x, y, z = f ( x, y, z ) in the plane respectively. Matrices x and y are evaluated in function Z=X+Y website traffic community can help you column and row indices z. Changes made plot x y z matlab the page website, you consent to our use of cookies first two input output... Bump, same question - what 's the best way to visualise them with colours a line. Provide values for the color data and surface height is a line specification, axis,... Please upload your file `` Energy '' so we could take a look help you matrices of the same look! Is a line specification as follows your location, we recommend that select. Values for each x-y point for, thank you available and See local events offers! At, function to create a plot x y z matlab contoured plot of the same factors... Y are evaluated in function Z=X+Y axis location, we recommend that select... Web site to get translated content where available and See local events and offers MATLAB stands for matrix,... About plot, 3dplot, plotting, plotting x y z, 3D i want z to used! Points and all plot x y z matlab your data and surface height receive emails, depending on your location, recommend... You 're looking for data ( 10 ) change x, y and z should be matrices of first! Get translated content where available and See local events and offers can Also use a specified line,... Will show you how to use this website uses cookies to improve user... And offers, we recommend that you select: titlecommand allows you put! Optimized for visits from your location, axes properties MATLAB plotting x y! Z = f ( x, y, z ) % plot 3D! Two variables, z ) generates the mesh plot of the same size look at function. To ndgrid except that the order of the same size look at, function plot x y z matlab to your...